This base-mounted end suction pump is constructed with a class 30 cast iron casing featuring a centerline discharge for air venting. The internal assembly utilizes a bronze impeller dynamically balanced to ANSI Grade G6.3, which is fitted to a stainless steel shaft. The design incorporates a dry shaft construction that isolates the shaft from the circulating fluid, further protected by a replaceable bronze shaft sleeve. A mechanical seal assembly utilizing a ceramic seat half and EPT rubber provides a pressure rating of 125 PSI.
The assembly is powered by a 7.5 HP premium efficiency ODP motor operating at 1750 RPM with Aegis grounding on 380-460V 3PH power, yielding a DOE PEI of 0.45. The "S" in the SFI series denotes Taco's advanced Self-Sensing technology, which eliminates remote sensors and field wiring by using internal mathematical algorithms to calculate system resistance and automate variable flow. The included VFD is configured with a fused disconnect with 100kA SCCR and holds an enclosure NEMA 1 / IP 21 rating. The drive ships unmounted for customer wall installation without a bracket, harness, or vibration mounts.